Ac Voltage

When an A.C. source is connected to an inductive circuit, the current lags behind the voltage. In an inductive circuit, the voltage leads the current because of the property of inductance.
The inductor resists changes in current, which causes the current to lag behind the voltage. The current reaches its peak value after the voltage reaches its peak. Therefore, the voltage is ahead of the current in phase.
Thus, the correct option is B.

In an A.C. circuit involving inductance, capacitance, and resistance, we calculate the readings of the voltmeter and ammeter using the concept of impedance. The voltmeter and both measure the voltage across individual components of the circuit, while the ammeter measures the current in the circuit.
Given:
-
- -
- Frequency
The total impedance in the circuit can be calculated using: Where: - is the inductive reactance - is the capacitive reactance Now, calculate: - - The total impedance is: Now, calculate the total current using Ohm's Law:
Thus, the current through the circuit is 2 A. Now, the reading of is approximately the total voltage drop across the impedance, which is the applied voltage of .